What is a Compressed Air Tank? Full Guide

What is a Compressed Air Tank? Full Guide

Spend some time learning about the device before purchasing a compressed air receiver tank.

In order to be used for energy transfer in industrial processes and a variety of applications, the air is compressed, or kept under pressure above atmospheric pressure. We are frequently questioned about whether or not an air receiver tank is necessary for a specific air compressor installation.

Our guide to compressed air receiver tanks explains how they work, what they do, and how you can use them to maximize the efficiency of your compressed air system.

What is a Compressed Air Tank?

Any compressed air system must have air receiver tanks because they not only serve as a buffer but also improve the system’s performance. Compressed air tanks must be exceptionally strong and quiet because of the enormous pressure they must withstand and their importance for the air compressor system.

Manufacturers can use air without a compressor by using compressed air tanks, and they can also add extra air to the system when it is heavily used.

The air compressor systems’ proximity to primary tanks, which serve as a tank, makes them convenient. Secondary tanks are placed away from compressor systems but still close to equipment that needs a lot of air.

What is a Compressed Air Tank? Full Guide

Because of the enormous pressure they hold, compressed air tanks are made to be incredibly strong and long-lasting. Many types of applications require air reception cabinets. These include:

  • Storage to protect against pressure fluctuations
  • Improved torque or speed
  • The compressed air tank’s volume should be adjusted to the conditions where you intend to use the air compressor.
  • From 30 to 8000 gallons are used as the reception cabinets in storage units.

The issue of turning on the compressor system when air is needed for only a few seconds can be solved with the help of compressed air tanks. As a result, using the compressor costs less. Additionally, costs for use and maintenance are decreased. Or when there is an increase in
use it is used to balance pressure.

The Purpose of An Air Receiver Tank

Compressed air is temporarily stored in an air receiver tank. Additionally, it makes your air compression system operate more effectively. The air receiver tank has three main functions in your compressed air system:

  • It stores compressed air that can be used for short, high-demand events.
  • To the compressor controls, it delivers a constant air signal.
  • When used as a “wet tank”, it acts as a secondary heat exchanger, increasing the efficiency of your compressed air dryer.

Compressed Air Storage

An air receiver tank’s main function is to offer momentary storage for compressed air. The system is able to average the peaks in compressed air demand throughout a shift thanks to the storage of compressed air. Your compressed air system’s air receiver tank functions similarly to a battery, but it stores air instead of chemical energy.

What is a Compressed Air Tank? Full Guide

This air can be used to power brief, high-demand events (up to 30 seconds) like a dust collector pulse, a quick burst from a sandblaster, or someone using a blowgun to dust themselves off. Even when the compressor is not running, the air in the tank is still available.

Storing compressed air reduces sudden demands on your air compressor, prolonging the life of your system. You might be able to use a lower horsepower compressor for heavier tasks if you use an air receiver tank.

We have introduced other compressed air energy storage products:

Compressor Control

Short-cycling and over-pressurization are prevented by the air receiver tank, which continuously feeds air to the compressor controls. Uneven compressed air usage results in uneven demand on the air compressor, which causes the compressor to cycle rapidly through its controls as it turns on and off to satisfy moment-by-moment demand.

Each time the system turns on and off (or loads/unloads) is called a “cycle”; it is better for the compressor motor to keep these cycles as long as possible. Over time, repeated short cycling will cause switches and other compressor parts to fail early.

Rapid cycling can result in excessive wear of the motor contactor or even a direct motor short because of winding insulation. The air receiver tank prevents short cycling and gives controls more stable system pressure.

Heat Exchanger

As air is compressed under pressure, its temperature increases; this is a simple law of physics known as the Pressure-Temperature Law. The air discharged from the air compressor may be as hot as 250 – 350°F depending on the type of air compressor you are using. Most air-operated equipment cannot be directly used because of the temperature.

More moisture is present in hotter air, which leads to an excess of water vapor that, if not eliminated, will condense in tools and control lines. Before being used, the condensed air must be cooled and dried. A heat exchanger is used to remove excess heat caused by compression.

What is a Compressed Air Tank? Full Guide

The air receiver tank acts as a secondary heat exchanger; as air sits in the tank or slowly flows through it, it naturally cools over time. The primary heat exchanger is supported by the air receiver tank, which frequently lowers the air’s temperature by an additional 5 to 10 degrees Fahrenheit.

Benefits of Air Receiver Tanks

Adding an air receiver tank significantly improves the efficiency of your compressed air system. They do this by:

  • Reducing waste of compressed air from excessive sump blowdowns
  • Lowing the pressure requirements for the air compressor and air network
  • Increasing the efficiency of the air dryer by reducing moisture

Reduce Waste of Compressed Air

Compressed air can be lost as the air compressor cycles on and off. Every time a rotary screw air compressor unloads, the sump tank (oil tank) is vented. During the venting, compressed air is released.

This adds up over time and results in the loss of tens of thousands of cubic feet of compressed air that could have been used to power various processes in your facility. Regular cycling and venting are decreased with an appropriately sized air storage tank.

Reduce Operating Pressure for the Air Compressor

Compressed air storage also allows you to reduce the pressure at which your air compressor operates. Without a reserve of compressed air to draw from, the system will need to run at higher pressures in order to be ready to handle peak demands at any time.

Essentially, you are requesting that your system behave as if there is a constant demand in your facility. Energy consumption goes up as a result, and the system gets older. The energy demand typically rises by 1% for every 2 PSI that the system’s pressure is increased. Your annual energy costs could increase by hundreds or thousands of dollars as a result.

What is a Compressed Air Tank? Full Guide

As previously mentioned, adding an air receiver tank will even out these demand peaks in your compressed air system, enabling you to meet sporadic spikes in demand without raising the system’s overall pressure.

Increase the Efficiency of the Dryer

Your air dryer’s efficiency is boosted by the heat exchanger feature of the air receiver tank. The air cools as it slowly circulates through the receiver tank. More moisture condenses and falls out of the air as a liquid because cooler air can’t hold as much moisture as warm air. An opening in the tank’s bottom allows water to drain out.

By removing some moisture in advance, the air receiver tank reduces the amount of work the air dryer needs to do. An increase in energy savings for your system results from this improved efficiency.

The Importance of Air Tanks in Compressed Air Systems

The air receiver tank is an important component of the compressed air system. The tank’s volume is 6 to 10 times greater than the flow rate of the compressor system. The typical receiving tank is 150 cubic feet (at a minimum) and uses compressors to move 25 square meters of material at 100 lbs.

A compressed air tank that can be used in times of high demand. dries out the air by cooling it, and removing water from the compressor system. The system’s pulse is decreased by the tank. The pulse is usually caused by a periodic downstream operation or a frequency compressor.

Every compressed air system needs an air-receiving tank, which is a crucial component. The receiving tank provides the following benefits:

  • To meet peak demands, the future tank serves as a compressed air tank.
  • The receiver tank’s ability to let the air cool will aid in the removal of water from the system.
  • The receiver tank reduces the pulse in the system caused by the reciprocating compressor or cyclic downstream process.
What is a Compressed Air Tank? Full Guide

The air receiving tank accounts for peak demand and aids in balancing the supply of the compressor with the demand of the system, much like a water tank saves a lot of water during dry spells and stores water during wet spells.

Can the Air Receiver Be Stored Outdoors?

Since compressed air receiver tanks can be large, many owners of compressed air systems would prefer to store them outside. Outdoor storage frees up valuable interior floor space.

Additionally, in warm weather, it aids in easing the load on your HVAC system. Temperatures in the compressor room are increased as hot air from the compressor cools inside the compressed air storage tank, radiating heat. By storing your tank outside, you can prevent excessive heat buildup in the compressor room and improve the efficiency of the storage tank’s secondary function as a heat exchanger.

However, outdoor storage only functions in milder, non-freezing climates. Check your climate to see if your compressed air tank can be placed outside.

Conclusion: Compressed Air Tank

A compressed air tank, or “carry tank,” is a handy workshop or garage tool that allows you to store compressed air in a portable, easy-to-use unit. Using any kind of air compressor, you compress air into the tank, which you then transport to the location where you need it.

A crucial part of your compressed air system is your air receiver tank. Having a properly sized air receiver tank ensures the safe and efficient operation of your system and provides a reservoir of extra power for use during periods of peak demand.


How Does An Air Compressor Tank Work?

To compress the air, the piston rises, and to release it, it descends. Working can become much more difficult than it needs to be due to this cyclical operation’s delivery of compressed air in pulses. A tank reduces pulsation and offers a constant flow of compressed air.

What Are Compressed Air Tanks Used For?

Air receiver tanks, also called compressed air tanks or simply air receivers, are crucial elements of compressed air systems. Air receiver tanks have two main purposes: to serve as short-term storage units during temporary demand spikes and to help systems perform more efficiently overall.

Are Compressed Air Tanks Safe?

All compressed gas cylinders are hazardous because of the high pressures inside the cylinders. By opening the cylinder valve, gas can be intentionally released, or it can leak or break a safety device and release gas unintentionally.

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